Johnny Galecki
Acting
Biography
Johnny Galecki is a Belgian-born American actor, best known for his roles as David Healy in Roseanne, Rusty Griswold in National Lampoon's Christmas Vacation, and as Leonard Hofstadter in The Big Bang Theory.
Filmography 60
Movies (31)
I'm Chevy Chase and You're Not2025Self
The Little Dog Laughed2020Alex
Unraveling the Mystery: A Big Bang Farewell2019Self - Host
A Dog's Journey2019Henry Montgomery
The Cleanse2018Paul Berger
Rings2017Gabriel Brown
Must See TV: An All Star Tribute to James Burrows2016Self
CBGB2013Terry Ork
In Time2011Borel
Table for Three2009Ted
Hancock2008Jeremy
Happy Endings2005Miles (uncredited)
Chrystal2004Barry
Bookies2003Jude
Vanilla Sky2001Peter Brown
Morgan's Ferry2001Darcy
Bounce2000Seth
Playing Mona Lisa2000Arthur
The Opposite of Sex1998Jason Bock
I Know What You Did Last Summer1997Max Neurick
Suicide Kings1997Ira Reder
Bean1997Stingo Wheelie
Murder at My Door1996Teddy McNair
Without Consent1994Marty
Sudden Fury1993Daniel Hannigan
Backfield in Motion1991Tim Seavers
In Defense of a Married Man1990Eric
National Lampoon's Christmas Vacation1989Rusty Griswold
Prancer1989Billy Quinn
A Night in the Life of Jimmy Reardon1988Toby Reardon
Shows (29)
Stars in the House2020Self
The Conners2018David Healy
SciJinks2018Self - Host
The Late Show with Stephen Colbert2015Self - Guest
Lip Sync Battle2015Self
Conan2010Self
The Talk2010Self
The Big Bang Theory2007Leonard Hofstadter- Boulevard of Broken Dreams2007Self (archive footage)
My Name Is Earl2005Scott
American Dad!2005Arnie (voice)
The Late Late Show with Craig Ferguson2005Self
LAX2004Leland Pressman
Entourage2004Johnny Galecki
Hope & Faith2003Jay
The Ellen DeGeneres Show2003Self
The Norm Show1999Dale Stackhouse
Family Guy1999Leonard Hofstadter (voice)
Batman Beyond1999Knux (voice)
Billy1992David MacGregor
Civil Wars1991Greg Stolbach
American Dreamer1990Danny Nash
Blossom1990Jason
Blind Faith1990John Marshall
Hardball1989
Roseanne1988David Healy
Entertainment Tonight1981Self
People's Choice Awards1975Self - Presenter- Peep ShowMark